At this latitude the sun is visible for 15 hours, 37 minutes during the summer solstice and 8 hours, 46 minutes during the winter solstice. The midday sun stands 21.6 degrees above the southern horizon at the December solstice, 68.4 degrees at the June solstice, and exactly 45.0 degrees at the two equinoxes.[2]

All of mainland New Brunswick lies north of the 45th parallel. The southernmost point in mainland New Brunswick, just north of the 45th parallel, is Greens Point, approximately 90 kilometres (56 mi) west of Saint John. Approximately two-thirds of Deer Island, plus all of Campobello and Grand Manan islands, are south of the 45th parallel.